More than three years have passed since the last time the “Korean Zombie” stepped into the UFC’s octagon. That night, Aug. 3, 2013, Chan Sung Jung lost to Jose Aldo by fourth-round TKO. And, yes, a lot has changed since Jung fought.

Aldo was the featherweight champion then. The UFC was owned by the Fertitta brothers. The U.S. Anti-Doping Agency was not administering the UFC’s drug testing program. Conor McGregor was a prelim fighter.

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And Dennis Bermudez, against whom Jung will fight in the main event at UFC Fight Night at the Toyota Center in Houston on Feb. 4, 2017, was four fights into his seven-fight winning streak that saw him rise up the featherweight division. The Bermudez-Zombie fight was announced Saturday night during the “Ultimate Fighter” finale.

Bermudez (17-5, 9-3 UFC) is now on a two-fight win streak after losing his two previous bouts. Bermudez, who trains at Long Island MMA and Bellmore Kickboxing Academy, last fought in August and won a unanimous decision over Rony Jason.

Jung (13-4, 3-1 UFC) had to leave MMA for two years to fulfill a mandatory military service required of South Korean male citizens.